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K-5 Grade 1 Unit 2 Lesson 12

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•K-5 Math 6-8 Math 9-12 Math

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Kindergarten •Grade 1 Grade 2 Grade 3 Grade 4 Grade 5

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Unit 1 •Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

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Lesson 1 Lesson 2 Lesson 3 Lesson 4 Lesson 5 Lesson 6 Lesson 7 Lesson 8 Lesson 9 Lesson 10 Lesson 11 •Lesson 12 Lesson 13 Lesson 14 Lesson 15 Lesson 16 Lesson 17 Lesson 18 Lesson 19 Lesson 20 Lesson 21 Lesson 22 Lesson 23

K-5
6-8
9-12

Kindergarten
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Grade 5

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IM K-5 Math
IM 6-8 Math
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Lesson 12

Warm-up Activity 1 Activity 2

Unit 2, Lesson 12

How Many More? How Many Fewer?

Grade 1

Warm-up

How many do you see?
How do you see them?

10 frame, 4 counters.

10 frame. Top, 4 red counters, 1 yellow. Bottom, 1 yellow.

10 frame. Top, red counters, full. Bottom, 1 red counter,

10 frame. Top, red counters, full. Bottom, 1 red counter, 3 yellow counters.

Activity 1

There are 9 dry erase boards.
There are 6 markers.
Are there more dry erase boards or more markers?
How many more?

Show your thinking using drawings, numbers, or words.

Dry erase boards and markers.

Activity 2

There are 7 folders.
There are 9 pens.
Are there fewer folders or pens?
How many fewer?

Show your thinking using drawings, numbers, or words.
There are 5 pencils.
There are 8 markers.
Are there more pencils or markers?
How many more?

Show your thinking using objects, drawings, numbers, or words.